urllib3 | 易学教程

urllib3 on python 2.7 SNI error on Google App Engine

阅读更多关于 urllib3 on python 2.7 SNI error on Google App Engine

问题 I'm trying to download an HTTPS page from my site hosted on Google App Engine with SNI. No matter what library I use, I get the following error: [Errno 8] _ssl.c:504: EOF occurred in violation of protocol I've tried solving the error in many ways, including using the urllib3 openssl monkeypatch: from urllib3.contrib import pyopenssl pyopenssl.inject_into_urllib3 But I always get the same error mentioned above. Any ideas? 回答1: Unfortunately for urllib3, the Python standard library did not add

No module named urllib3

阅读更多关于 No module named urllib3

问题 I wrote a script to call an API and ran it successfully last week. This week, it won't run. I get back the following error message: Traceback (most recent call last): File "user_audit.py", line 2, in <module> import requests File "c:\Python27\lib\site-packages\requests\__init__.py", line 60, in <module> from .packages.urllib3.exceptions import DependencyWarning File "c:\Python27\lib\site-packages\requests\packages\__init__.py", line 29, in <module> import urllib3 ImportError: No module named

What's the meaning of pool_connections in requests.adapters.HTTPAdapter?

阅读更多关于 What's the meaning of pool_connections in requests.adapters.HTTPAdapter?

问题 When initializing a requests' Session , two HTTPAdapter will be created and mount to http and https. This is how HTTPAdapter is defined: class requests.adapters.HTTPAdapter(pool_connections=10, pool_maxsize=10, max_retries=0, pool_block=False) While I understand the meaning of pool_maxsize (which is the number of session a pool can save), I don't understand what pool_connections means or what it does. Doc says: Parameters: pool_connections – The number of urllib3 connection pools to cache.

Python urllib实用方法、属性、流程总结

阅读更多关于 Python urllib实用方法、属性、流程总结

一、urllib、urllib2、urllib3、requests urllib2室python2中的，python3合并了urllib和urllib2到urllib目录下，所以python3直接使用urllib。 urllib3是一个三方库，它提供了连接池、客户端SSL/TLS验证、文件编码上传、HTTP重定向、gzip和deflate压缩编码、HTTP和SOCKS代理等功能。 requests也是一个三方库，它依赖于urllib3，做了一些封装，所以一般使用requests的比较多。二、urlopen from urllib import request,parse response = request.urlopen(r'http://www.baidu.com', timeout=3000) # <class 'http.client.HTTPResponse'> print(type(response)) content = response.read() # <class 'bytes'> print(type(content)) print(content.decode('utf-8')) # 传递参数 param = parse.urlencode({'id': '2'}) data = bytes(param, encoding='utf8') response

How to fix ImportError: No module named packages.urllib3?

阅读更多关于 How to fix ImportError: No module named packages.urllib3?

问题 I'm running Python 2.7.6 on an Ubuntu machine. When I run twill-sh (Twill is a browser used for testing websites) in my Terminal, I'm getting the following: Traceback (most recent call last): File "dep.py", line 2, in <module> import twill.commands File "/usr/local/lib/python2.7/dist-packages/twill/__init__.py", line 52, in <module> from shell import TwillCommandLoop File "/usr/local/lib/python2.7/dist-packages/twill/shell.py", line 9, in <module> from twill import commands, parse, __version_

urllib3.exceptions.ProtocolError: ('Connection aborted.', error(10054, 'An existing connection was forcibly closed by the remote host'))

阅读更多关于 urllib3.exceptions.ProtocolError: ('Connection aborted.', error(10054, 'An existing connection was forcibly closed by the remote host'))

I am trying to open a website on chrome using Python Selenium chromedriver. Chrome browser is opening (with warnings) and the url is not opening. Version details : Chrome : 68.0.3440.106 selenium : 3.14.0 chromedriver : 2.20 python : 2.7 I am using below code : import time from selenium import webdriver import selenium driver = webdriver.Chrome("C:/Python27/chromedriver.exe") driver.get("https://vancouver.craigslist.ca/") print(driver.title) time.sleep(8) driver.quit() I am getting below error: C:\Users\sohil7777\PycharmProjects\temp.py\venv\Scripts\python.exe C:/Users/sohil7777/.PyCharmCE2018

Python urllib3 and how to handle cookie support?

阅读更多关于 Python urllib3 and how to handle cookie support?

问题 So I'm looking into urllib3 because it has connection pooling and is thread safe (so performance is better, especially for crawling), but the documentation is... minimal to say the least. urllib2 has build_opener so something like: #!/usr/bin/python import cookielib, urllib2 cj = cookielib.CookieJar() opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj)) r = opener.open("http://example.com/") But urllib3 has no build_opener method, so the only way I have figured out so far is to

Suppress InsecureRequestWarning: Unverified HTTPS request is being made in Python2.6

阅读更多关于 Suppress InsecureRequestWarning: Unverified HTTPS request is being made in Python2.6

I am writing scripts in Python2.6 with use of pyVmomi and while using one of the connection methods: service_instance = connect.SmartConnect(host=args.ip, user=args.user, pwd=args.password) I get the following warning: /usr/lib/python2.6/site-packages/requests/packages/urllib3/connectionpool.py:734: InsecureRequestWarning: Unverified HTTPS request is being made. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.org/en/latest/security.html InsecureRequestWarning) What's interesting is that I do not have urllib3 installed with pip (but it's there in /usr/lib

Using the Requests python library in Google App Engine

阅读更多关于 Using the Requests python library in Google App Engine

问题 I'm trying to use the awesome Requests library on Google App Engine. I found a patch for urllib3, which requests relies on, that is compatible with App Engine. https://github.com/shazow/urllib3/issues/61 I can successfully import requests but then response = requests.get('someurl') fails with the following traceback. What's going on? Traceback (most recent call last): File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google

MaxRetryError: HTTPConnectionPool: Max retries exceeded (Caused by ProtocolError('Connection aborted.', error(111, 'Connection refused')))

阅读更多关于 MaxRetryError: HTTPConnectionPool: Max retries exceeded (Caused by ProtocolError('Connection aborted.', error(111, 'Connection refused')))

I have one question:I want to test "select" and "input".can I write it like the code below: original code: 12 class Sinaselecttest(unittest.TestCase): 13 14 def setUp(self): 15 binary = FirefoxBinary('/usr/local/firefox/firefox') 16 self.driver = webdriver.Firefox(firefox_binary=binary) 17 18 def test_select_in_sina(self): 19 driver = self.driver 20 driver.get("https://www.sina.com.cn/") 21 try: 22 WebDriverWait(driver,30).until( 23 ec.visibility_of_element_located((By.XPATH,"/html/body/div[9]/div/div[1]/form/div[3]/input")) 24 ) 25 finally: 26 driver.quit() # #测试select功能 27 select=Select